MRS. KIM: Maybe you should be less busy. Then you can remember to pick up chairs.
LORELAI: Right. Absolutely. Smell a rose, got it.
Lorelai is referring to the cliched advice to “stop and smell the roses”, meaning to slow down and allow yourself to notice and enjoy the beauty of life.
The saying appears to come from golfer Walter Hagen’s 1956 book of golfing memoirs, The Walter Hagen Story. In it he advises his readers: “You’re only here for a short visit. Don’t hurry, don’t worry. And be sure to smell the flowers along the way. ”
It was further popularised by American singer-songwriter Mac Davis, in his 1974 pop song Stop and Smell the Roses, from his album of the same name. Davis got the idea for the song from the bandleader on The Tonight Show, whose doctor had said the phrase to him.
Note the implication from Lorelai that she is so busy she only has time to smell one rose.